Diferent excerpt length for 2 diferent masonry elements

Hi Team!
Im wandering if is posible to have diferent excerpt length for the masonry… I explain:
1- I have one masonry in the home page showing the blog, there I need 99 excerpt length:
http://www.farmacia-amado.com.mialias.net/
2- I have one masonry in the services page, there I need 260 excerpt length:

I try this in functions.php:

/* EXCERPT */

add_filter( 'avf_masonry_excerpt_length', 'masonry_excerpt_length');
function masonry_excerpt_length() {
$excerpt = 260;
return $excerpt;
}

/* BTN MORE EN MASONRY */

add_filter('avf_masonry_loop_prepare','avia_change_default_link', 10, 2);
function avia_change_default_link($loop, $entries)
{
	foreach($entries->posts as $key => $entry)
    {
        if($entry->post_type == "post")
        {
            $more 	 		 =  "<br /><span class='masonry-more-link-arrow'>".__('Read more','avia_framework')."</span>";
			$loop['content'] =   avia_backend_truncate($entry->post_content, apply_filters( 'avf_masonry_excerpt_length' , 99) , apply_filters( 'avf_masonry_excerpt_delimiter' , " "), "…", true, '') . $more;
        }
    }

    return $loop;
}